THE COULOMB'S LAW 

 

The relationship of the electrical force between two charged objects, the
charge of each object and the distance between charges is summarized in
Coulomb's law.

Just like in Newton's Law of Gravitation, the Coulomb's Law follows a
similar relationship for the electrical force, charges and their distances.
French physicist Charles Coulomb discovered this law during the eighteenth
century. Coulomb's law states, "the force between two charges is
proportional to the product of the charges and is inversely proportional to
the square of the distance between them."

		Fe=K(QAQB/s2)
Where:
	Fe=electrical force
	QA=charge A charge of one particle
	QB=charge B charge of other particle
	s=distance between two charges
	K=proportionality constant

The proportionality constant k in this law is also similar to G in Newton's
Law of Gravitaion. Only instead of being a very small number, the electrical
proportionality k is a very big number. If we round off, it is equal to.

		K=9,000,000,000 N-m2/c2
		K=9 x 109 N-m2/c2